Search: id:A002112
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%I A002112 M3135 N1272
%S A002112 3,33,903,46113,3784503,455538993,75603118503,16546026500673,4616979073434903,
%T A002112 1599868423237443153,674014138103352845703,339274210193051498798433,
%U A002112 201097637653063767131142903,138634566390566081044811718513
%N A002112 Glaisher's H numbers.
%D A002112 A. Fletcher, J. C. P. Miller, L. Rosenhead and L. J. Comrie, An Index 
               of Mathematical Tables. Vols. 1 and 2, 2nd ed., Blackwell, Oxford 
               and Addison-Wesley, Reading, MA, 1962, Vol. 1, p. 76.
%D A002112 J. W. L. Glaisher, On a set of coefficients analogous to the Eulerian 
               numbers, Proc. London Math. Soc., 31 (1899), 216-235.
%D A002112 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002112 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%H A002112 Michael E. Hoffman, <a href="http://www.emis.ams.org/journals/EJC/Volume_6/
               PDF/v6i1r21.pdf">DERIVATIVE POLYNOMIALS, EULER POLYNOMIALS, AND ASSOCIATED 
               INTEGER SEQUENCES</a>
%H A002112 <a href="Sindx_Ge.html#Glaisher">Index entries for sequences related 
               to Glaisher's numbers</a>
%F A002112 H(n)=2^(2n+1)*I(n), where e.g.f. for (-1)^n*I(n) is (3/2)/(1+exp(x)+exp(-x)) 
               (see A047788, A047789).
%F A002112 H(n) = 3* A000436(n)/2^(2n+1)= 3*A002114(n). - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), 
               Jan 17 2004
%Y A002112 Sequence in context: A009690 A124432 A126466 this_sequence A055549 A086894 
               A012487
%Y A002112 Adjacent sequences: A002109 A002110 A002111 this_sequence A002113 A002114 
               A002115
%K A002112 nonn,nice,easy
%O A002112 1,1
%A A002112 N. J. A. Sloane (njas(AT)research.att.com).

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